How to set up automatic Wi-Fi connection on Android: from basic settings to hidden features

• 🔄 «Auto-connection" — included
• 📶 «Connect to the network when the signal is weak" - Disable if the network is unstable
• ⚡ «Allow connection in power saving mode" - turn on (name may differ)

On devices Samsung (shell One UI) And Xiaomi (MIUI) there is an additional switch "Smart switching» (Smart Switch). It automatically switches to mobile data if Wi-Fi is unstable. Disable it if you want your smartphone to always try to stay connected to Wi-Fi.

Is the Wi-Fi module turned on?

Is the "Connect automatically" checkbox active?

The network is not on the blacklist (forgotten networks)?

Doesn't power saving mode block background connectivity?

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Network Priority: How to Make Android Choose the Right Wi-Fi

If your smartphone connects to the wrong network (for example, to a neighbor's network instead of your router), you'll need to manually prioritize it. Unfortunately, the standard Android interface doesn't offer this feature—you'll have to use workarounds.

Method 1: Removing unnecessary networks

Android connects to networks in the order they're added (newest to oldest). To "raise" the priority of your home network:

1. Open Settings → Wi-Fi.
2. Click on the three dots (⋮) in the upper right corner and select "Network management" or "Saved networks».
3. Remove all unnecessary networks (guest, public, old routers).
4. Restart your smartphone and reconnect to the desired network.

Method 2: Changing the connection order via ADB (for advanced users)

If deleting networks doesn't help, you can manually set the priority using commands ADBTo do this:

1. Turn on USB debugging V Settings → About phone → Build number (click 7 times) → Settings → System → Developer Options.
2. Connect your smartphone to your PC and run the command:

   adb shell cmd wifi setNetworkSelectionEnabled 0

   This will disable automatic network selection.

3. Set the priority for the desired network (replace NETWORK_ID to her number from the list adb shell cmd wifi list-networks):

   adb shell cmd wifi setNetworkSuggestionPriority NETWORK_ID 1

⚠️ Attention: ADB commands are reset after a reboot. To preserve the changes, use a task in Tasker or a script with rights root.

Resolving issues with hidden networks and enterprise authentication

If your router is not broadcasting SSID (hidden network) or uses corporate authentication (WPA2-Enterprise, 802.1X), the standard auto-connection may not work. Here's how to fix it:

For hidden networks (Hidden SSID):

• 📡 Add a network manually via "Add a network» in Wi-Fi settings.
• 🔄 Make sure that the router is in the enabled mode 802.11r (Fast Transition) - This speeds up reconnection.
• 🔒 In the field "Hidden network» select «Yes» when adding.

For networks with Enterprise- authorization (for example, in universities or offices):

• 🏢 Select your security type 802.1X EAP when adding a network.
• 🔑 Specify the authentication method (PEAP, TTLS, TLS) and upload the certificate (if required).
• 📱 In the field "Identifier» enter your login (for example, student@uni.ru).
• 🔄 If the network requires re-authorization, disable the "Connect automatically" - it can cause errors.

Energy Saving vs. Reliable Wi-Fi: How to Find the Balance

One of the main reasons Android disconnects from Wi-Fi is aggressive power-saving settings. Manufacturers add their own algorithms that can interfere with network performance. Here's how to fix this:

1. Disable Adaptive Battery for Wi-Fi:

• Go to Settings → Battery → Battery Mode.
• Select "High performance" or "Adaptive", but add Wi-Fi to the exceptions.
• On Xiaomi turn off "Wi-Fi optimization" V Settings → Battery → Power saving settings.

2. Set up "Wi-Fi Sleep Mode":

In some firmware (for example, LineageOS or ColorOS) there is an option "Wi-Fi Sleep Policy" It determines how the Wi-Fi module behaves when the screen is locked:

• 🔄 «Always" - Wi-Fi works even when the screen is off (it drains the battery).
• ⚡ «Only when charging" is the best option for saving money.
• 🚫 «Never» — Wi-Fi turns off when blocked (not recommended).

3. Use Developer Options:

1. Tasker (for advanced users)

• 📍 Check location (for example, at home or at work).
• 🔄 Turn on Wi-Fi and connect to the desired network.
• ⚡ Disable mobile data after successful connection.

Profile example:

Profile: "Home Wi-Fi" (Event: Geofence - Home)
Task:
1. Wi-Fi → Turn on
2. Wait 10 seconds
3. Wi-Fi → Connect to "MyHomeWiFi"
4. If %WIFII ~ MyHomeWiFi, That:
- Mobile data → Turn off

2. Macrodroid (easier than Tasker)

Create a macro:

1. Trigger: "Connecting to Wi-Fi» → select your network.
2. Action: "Turn off mobile data».
3. Limitation: "Only if the screen is on» (optional).
How to bypass manufacturer restrictions?

Some brands (eg Huawei or Oppo) block background running of applications. To Tasker or Macrodroid worked correctly:

1. Add them to the Protected Apps list (Settings → Battery → App launcher).

2. Disable battery optimization for these apps.

3. Enable autostart in security settings.

Troubleshooting: Logs, Tests, and Hidden Menus

If auto-connection still isn't working, it's time to dig deeper. Here are some diagnostic tools:

1. View Wi-Fi logs

Turn on developer mode and activate "Wi-Fi Log» (Enable Wi-Fi verbose logging). Logs will be available through adb logcat or apps like Logcat Extreme.

2. Speed ​​and stability test

Use WiFi Analyzer (NetSpot or Fing) to check:

• 📶 Signal level (RSSI): optimal -50 dBm (closer to 0 is better).
• 🔄 Channel and congestion: If the channel is overloaded, change it in the router settings.
• ⚡ Connection speeds: If the actual speed is lower than 50% of the tariff, the problem may be on the provider's side.

3. Hidden Wi-Fi menu (for Qualcomm And Mediatek)

Some devices have an engineering menu for fine-tuning the Wi-Fi module. To access it:

• Open your phone keypad and enter:

  ##528##

  or

  ##4636## → Wi-Fi information

• Check the parameters Roaming, Scan Interval And Suspend Mode.

⚠️ Attention: Changing the settings in the engineering menu may result in unstable Wi-Fi operation. Never change the values TX Power (transmit power) - this may invalidate the device's certification and lead to legal issues in some countries.

FAQ: Frequently asked questions about auto-connecting Wi-Fi on Android

Why does my smartphone connect to Wi-Fi, but the internet doesn't work?
This is a typical issue where a device receives an IP address but cannot connect to the network. Causes:
• 🔌 It's disabled on the router DHCP — check your IP distribution settings.
• 🌍 DNS issues: try entering it manually 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare) in network settings.
• 🔒 A firewall or parental controls on the router is blocking the device.
How can I make my smartphone connect to Wi-Fi only at home?

Use geofencing in Tasker or Macrodroid:

1. Create a task with the trigger "Location - Home».
2. Add the action "Turn on Wi-Fi" And "Connect to [network name]».
3. Add an exit action: turn off Wi-Fi when leaving the zone.

Alternative: Customize BSSID-filtering on the router so that it ignores your smartphone outside the home.

Is it possible to force Android to connect to 5 GHz instead of 2.4 GHz?
Yes, but it depends on the router:
• If you have one network name (SSID) for both ranges, the smartphone will automatically select the faster one (usually 5 GHz).
• If the networks are separated (eg MyWiFi_2G And MyWiFi_5G), connect manually to 5 GHz and check "Connect automatically».
• Enable it in your router settings. Band Steering - This feature automatically redirects devices to a less crowded range.
Why did my Android stop connecting to Wi-Fi after updating?

Updates often reset network settings or change Wi-Fi drivers. Try:

• 🔄 Forget network (Settings → Wi-Fi → ⚙️ → Delete) and reconnect.
• 📱 Reset network settings: Settings → System → Reset → Reset Wi-Fi, mobile networks, and Bluetooth.
• 🔧 Update your router firmware - sometimes the problem lies in protocol incompatibility.

If the problem persists, check the logs via adb logcat | grep Wifi.

How do I disable automatic connection to public networks?
Android can connect to open networks by default (for example, in a cafe). To disable this:
1. Open Settings → Wi-Fi → ⋮ → Advanced → Smart connection (the name may differ).
2. Disable the options "Auto-connection to open networks" And "Notify about public networks».
3. On Xiaomi turn off "Auto-connection to Xiaomi networks" V Settings → Wi-Fi → Advanced.